SCEC Award Number 18184 View PDF
Proposal Category Individual Proposal (Data Gathering and Products)
Proposal Title Contributions to the Community Rheology Model: Synthesis, Coordination and Modeling
Investigator(s)
Name Organization
Elizabeth Hearn Independent Contractor
Other Participants
SCEC Priorities 1c, 1e, 3b SCEC Groups CXM, SDOT, Geology
Report Due Date 03/15/2019 Date Report Submitted 05/02/2019
Project Abstract
 My 2018 SCEC activities involved coordinating and contributing to CRM research. Tasks from my 2018 proposal included:
(1) Assisting with development and revision of the GF
(2) Cross-checking the GF and the CTM and co-registering their domains
(3) Coordinating and documenting CRM activities
(4) Deformation modeling
My research focused on (3) and (4) because the GF lithologic columns were completed without my direct involvement, and the GF and CTM province boundaries were unavailable to me before March 2019. I hosted and documented nine telecons, co-hosted the 2018 CRM workshop, densified my southern CA finite element mesh and wrote Matlab codes to begin incorporating the CRM into this and other deformation models.
Intellectual Merit This research contributes to developing a resource (the CRM) that will be used to improve deformation models aimed at several SCEC objectives, including physics-based PSHA, strong motion forecasts and rupture propagation modeling. The CRM is our principal vehicle for implementing the "beyond elasticity" theme for SCEC5. Models incorporating the CRM will be well-documented and reproducible, and not prone to naive mistakes or oversimplifications due to a lack of familiarity with regional geology, conditions, and most likely material properties.
Broader Impacts The CRM is a community resource designed to facilitate the development of realistic, cutting edge deformation models. It will help modelers improve their estimates of fault slip rates and crustal stresses for PSHA, which is of obvious societal importance. It will also provide a way to refine and test the compatibility of SCEC's other community models.
Exemplary Figure Figure 1